Add support (macros) for Selenium

[Cinova Engineering]

Maybe something that does any standard boilerplate? At the very least probably:

• a new behaviour
• a (defwebtest ...) macro that wraps (deftest ...)

There is an Erlang webdriver here:

• https://github.com/Quviq/webdrv

Blog post describing it:

• http://blog.equanimity.nl/blog/2014/03/07/selenium-webdriver-for-erlang/

Selenium webdriver docs:

• http://docs.seleniumhq.org/docs/03_webdriver.jsp

[Cinova Engineering]

Just submitted a PR for this work.

[Duncan McGreggor]

This was merged, but then had to be broken out into its own project here:

• https://github.com/lfex/lse